package day07;

import java.io.FileOutputStream;

public class Demo06 {

	public static void main(String[] args) throws Exception {
		String file="abc/fos.txt";
		FileOutputStream out=new FileOutputStream(file,true);
		out.write(65);
		out.write(66);
		
		
		out.close();
		
		System.out.println("ok");
	}

}
